Question

Which of the following secretes large amount of progesterone?

• A. Graafian follicle
• B. Corpus albicans
• C. Corpus luteum
• D. Primary follicle

Hint:

Progesterone = pregnancy hormone, secreted mainly by corpus luteum.

Answer 1

The Correct Option is C

Step 1: Role of corpus luteum.
After ovulation, the ruptured follicle transforms into corpus luteum, secreting progesterone for maintaining endometrium.
Step 2: Analysis of options.
(1) Graafian follicle – Produces estrogen.
(2) Corpus albicans – Degenerated luteum, inactive.
(3) Corpus luteum – Correct, main source of progesterone.
(4) Primary follicle – Early stage, no progesterone.
Step 3: Conclusion.
Correct answer is (3) Corpus luteum.